It marked the first time Iranian-made Fajr-5 rockets targeted the cities of Tel Aviv and Jerusalem. Hezbollah is now believed to have upgraded its own arsenal of rockets since it fought a 34-day war with Israel in 2006 and intelligence experts believe it is capable of striking anywhere in the country.

Mr Nasrallah, speaking in Beirut, said the Gaza rocket attacks ‘shook Israel’, adding: ‘How is it (Israel) going to stand thousands of rockets that will fall on Tel Aviv and other areas if it launches an aggression against Lebanon?’

The truce in Gaza continued to hold yesterday, a day after leading Islamic cleric Suleiman al-Daya issued a fatwa – or religious edict – that ruled it a sin to violate the ceasefire.